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Data Sheet
UCC25660x Family
750kHz Wide VIN/VOUT Range LLC
Controller Optimized
for Light-Load Efficiency
1 Features
- 50kHz to 750kHz full-load switching
frequency
- IPPC control enables wide input and output LLC
(WLLC) operation
- Enhanced light load management:
- High frequency pulse skip for improved light load efficiency
- Low frequency burst for low standby power
- Audible frequency range skip for reduced audible noise
- Integrated PFC on/off control signal to help further reduce standby power
- Internal resonant-capacitor voltage synthesizer for enhanced signal reliability and high startup frequency support
- Automatic capacitive region avoidance
- Adaptive soft start with minimized inrush
current
- Integrated high-voltage startup (UCC256601, UCC256602, and UCC256604)
- X-capacitor discharge (UCC256601 and UCC256604).
- Integrated +0.6/-1.2A gate drive
- Complete protections
- 50ns Over-Current Protection (OCP) -
cycle-by-cycle current limit
- Over-Voltage Protection (OVP), internal and
external Over-Temperature Protection (OTP)
- Input and VCCP UVLO with internal 19V VCCP
Clamp
- SOIC-14 package with removed pins for high-voltage clearance
